Nozzle & Melt Thermocouples — Plastics & Injection Molding

Nozzle and Melt Sensor Fit-Up

Nozzle, nozzle-tip, and melt thermocouples use compact threaded, bayonet, or melt-bolt geometry for plastics tooling, barrels, dies, hot runners, and localized high-temperature machine points.

Nozzle & Melt Thermocouple Models

Nozzle Thermocouple — Bolt Style

A bolt-style thermocouple sensor threaded directly into a nozzle or barrel port. The thermocouple junction is located at the bolt tip, measuring temperature at the point of contact. Lead wire exits from the bolt head for connection to the machine controller.

Nozzle Tip Sensors

Nozzle-tip sensors are built for plastic injection nozzles, extruder nozzles, hot runner drops, and compact nozzle bodies where the sensing point has to sit close to the polymer flow path without interfering with tooling clearance or heater-band service.

Nozzle Melt Thermocouple

A specialized melt-probe thermocouple designed for direct contact with the molten polymer stream inside an injection nozzle, extruder barrel, die, or hot runner system. The tip geometry is matched to the nozzle bore for maximum thermal contact with the melt. Provides melt-stream temperature rather than barrel-wall temperature.

Melt Bolt — Lead Wire & Connector

The quick-disconnect style adds a miniature thermocouple connector to the lead wire, enabling field replacement without re-wiring the machine controller. Standard ANSI miniature connector, color-coded per type.